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QxOrm
1.2.7
C++ Object Relational Mapping library
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00001 /**************************************************************************** 00002 ** 00003 ** http://www.qxorm.com/ 00004 ** Copyright (C) 2013 Lionel Marty (contact@qxorm.com) 00005 ** 00006 ** This file is part of the QxOrm library 00007 ** 00008 ** This software is provided 'as-is', without any express or implied 00009 ** warranty. In no event will the authors be held liable for any 00010 ** damages arising from the use of this software 00011 ** 00012 ** Commercial Usage 00013 ** Licensees holding valid commercial QxOrm licenses may use this file in 00014 ** accordance with the commercial license agreement provided with the 00015 ** Software or, alternatively, in accordance with the terms contained in 00016 ** a written agreement between you and Lionel Marty 00017 ** 00018 ** GNU General Public License Usage 00019 ** Alternatively, this file may be used under the terms of the GNU 00020 ** General Public License version 3.0 as published by the Free Software 00021 ** Foundation and appearing in the file 'license.gpl3.txt' included in the 00022 ** packaging of this file. Please review the following information to 00023 ** ensure the GNU General Public License version 3.0 requirements will be 00024 ** met : http://www.gnu.org/copyleft/gpl.html 00025 ** 00026 ** If you are unsure which license is appropriate for your use, or 00027 ** if you have questions regarding the use of this file, please contact : 00028 ** contact@qxorm.com 00029 ** 00030 ****************************************************************************/ 00031 00032 #ifndef _QX_GENERIC_CONTAINER_H_ 00033 #define _QX_GENERIC_CONTAINER_H_ 00034 00035 #ifdef _MSC_VER 00036 #pragma once 00037 #endif 00038 00046 #include <boost/type_traits/is_pointer.hpp> 00047 00048 #include <QxTraits/is_smart_ptr.h> 00049 #include <QxTraits/remove_attr.h> 00050 #include <QxTraits/remove_smart_ptr.h> 00051 #include <QxTraits/construct_ptr.h> 00052 00053 namespace qx { 00054 namespace trait { 00055 00056 class no_type 00057 { private: void dummy() const { ; } }; 00058 00063 template <class T> 00064 struct generic_container 00065 { typedef no_type type_item; typedef no_type type_key; typedef no_type type_value; typedef no_type type_value_qx; typedef no_type type_iterator; }; 00066 00067 template <typename Key, typename Value> 00068 struct generic_container_item 00069 { 00070 00071 typedef Key type_key; 00072 typedef Value type_value; 00073 typedef typename qx::trait::remove_attr<Value>::type type_value_qx_tmp; 00074 typedef typename qx::trait::remove_smart_ptr<type_value_qx_tmp>::type type_value_qx; 00075 00076 enum { is_key_pointer = (boost::is_pointer<type_key>::value || qx::trait::is_smart_ptr<type_key>::value) }; 00077 enum { is_value_pointer = (boost::is_pointer<type_value>::value || qx::trait::is_smart_ptr<type_value>::value) }; 00078 00079 private: 00080 00081 std::pair<type_key, type_value> m_pair; 00082 00083 public: 00084 00085 generic_container_item() { ; } 00086 generic_container_item(const Key & key, const Value & value) { m_pair = std::make_pair(key, value); } 00087 ~generic_container_item() { ; } 00088 00089 inline type_key & key() { return m_pair.first; } 00090 inline type_value & value() { return m_pair.second; } 00091 inline const type_key & key() const { return m_pair.first; } 00092 inline const type_value & value() const { return m_pair.second; } 00093 inline type_value_qx & value_qx() { return value_qx_Helper<is_value_pointer, type_value, type_value_qx, 0>::get(m_pair.second); } 00094 inline const type_value_qx & value_qx() const { return value_qx_Helper<is_value_pointer, type_value, type_value_qx, 0>::get(m_pair.second); } 00095 00096 inline void key(const Key & key) { m_pair.first = key; } 00097 inline void value(const Value & value) { m_pair.second = value; } 00098 00099 static inline type_key newKey() { return new_Helper<is_key_pointer, type_key, 0>::get(); } 00100 static inline type_value newValue() { return new_Helper<is_value_pointer, type_value, 0>::get(); } 00101 00102 private: 00103 00104 template <bool bIsPointer /* = true */, typename T, int dummy> 00105 struct new_Helper 00106 { static inline T get() { T t; qx::trait::construct_ptr<T>::get(t); return t; } }; 00107 00108 template <typename T, int dummy> 00109 struct new_Helper<false, T, dummy> 00110 { static inline T get() { return T(); } }; 00111 00112 template <bool bIsPointer /* = true */, typename T, typename U, int dummy> 00113 struct value_qx_Helper 00114 { static inline U & get(T & t) { return (* t); } }; 00115 00116 template <typename T, typename U, int dummy> 00117 struct value_qx_Helper<false, T, U, dummy> 00118 { static inline U & get(T & t) { return t; } }; 00119 00120 }; 00121 00122 } // namespace trait 00123 } // namespace qx 00124 00125 #define QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(TypeContainer, TypeKey, TypeValue) \ 00126 typedef qx::trait::generic_container_item< TypeKey, TypeValue > type_item; \ 00127 typedef typename type_item::type_key type_key; \ 00128 typedef typename type_item::type_value type_value; \ 00129 typedef typename type_item::type_value_qx type_value_qx; \ 00130 typedef typename TypeContainer::iterator type_iterator; 00131 00132 namespace qx { 00133 namespace trait { 00134 namespace detail { 00135 00136 template <typename Container, typename Item> 00137 struct generic_container_base 00138 { 00139 00140 QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(Container, qx::trait::no_type, Item) 00141 00142 static inline long size(const Container & t) { return static_cast<long>(t.size()); } 00143 static inline void clear(Container & t) { t.clear(); } 00144 static inline void reserve(Container & t, long l) { t.reserve(l); } 00145 static inline type_item createItem() { return type_item(type_item::newKey(), type_item::newValue()); } 00146 static inline void insertItem(Container & t, type_item & item) { t.push_back(item.value()); } 00147 static inline type_iterator end(Container & t) { return t.end(); } 00148 00149 static inline type_iterator begin(Container & t, type_item & item) 00150 { if (t.size() <= 0) { return t.end(); }; item.value(* t.begin()); return t.begin(); } 00151 00152 static inline type_iterator next(Container & t, type_iterator itr, type_item & item) 00153 { itr++; if (itr == t.end()) { return t.end(); }; item.value(* itr); return itr; } 00154 00155 }; 00156 00157 template <typename Container, typename Item> 00158 struct generic_container_base_without_reserve 00159 { 00160 00161 QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(Container, qx::trait::no_type, Item) 00162 00163 static inline long size(const Container & t) { return static_cast<long>(t.size()); } 00164 static inline void clear(Container & t) { t.clear(); } 00165 static inline void reserve(Container & t, long l) { Q_UNUSED(t); Q_UNUSED(l); } 00166 static inline type_item createItem() { return type_item(type_item::newKey(), type_item::newValue()); } 00167 static inline void insertItem(Container & t, type_item & item) { t.push_back(item.value()); } 00168 static inline type_iterator end(Container & t) { return t.end(); } 00169 00170 static inline type_iterator begin(Container & t, type_item & item) 00171 { if (t.size() <= 0) { return t.end(); }; item.value(* t.begin()); return t.begin(); } 00172 00173 static inline type_iterator next(Container & t, type_iterator itr, type_item & item) 00174 { itr++; if (itr == t.end()) { return t.end(); }; item.value(* itr); return itr; } 00175 00176 }; 00177 00178 template <typename Container, typename Item> 00179 struct generic_container_base_set 00180 { 00181 00182 QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(Container, qx::trait::no_type, Item) 00183 00184 static inline long size(const Container & t) { return static_cast<long>(t.size()); } 00185 static inline void clear(Container & t) { t.clear(); } 00186 static inline void reserve(Container & t, long l) { Q_UNUSED(t); Q_UNUSED(l); } 00187 static inline type_item createItem() { return type_item(type_item::newKey(), type_item::newValue()); } 00188 static inline void insertItem(Container & t, type_item & item) { t.insert(item.value()); } 00189 static inline type_iterator end(Container & t) { return t.end(); } 00190 00191 static inline type_iterator begin(Container & t, type_item & item) 00192 { if (t.size() <= 0) { return t.end(); }; item.value(* t.begin()); return t.begin(); } 00193 00194 static inline type_iterator next(Container & t, type_iterator itr, type_item & item) 00195 { itr++; if (itr == t.end()) { return t.end(); }; item.value(* itr); return itr; } 00196 00197 }; 00198 00199 template <typename Container, typename Key, typename Value> 00200 struct generic_container_base_key_value_std_style 00201 { 00202 00203 QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(Container, Key, Value) 00204 00205 static inline long size(const Container & t) { return static_cast<long>(t.size()); } 00206 static inline void clear(Container & t) { t.clear(); } 00207 static inline void reserve(Container & t, long l) { t.reserve(l); } 00208 static inline type_item createItem() { return type_item(type_item::newKey(), type_item::newValue()); } 00209 static inline void insertItem(Container & t, type_item & item) { t.insert(std::make_pair(item.key(), item.value())); } 00210 static inline type_iterator end(Container & t) { return t.end(); } 00211 00212 static inline type_iterator begin(Container & t, type_item & item) 00213 { if (t.size() <= 0) { return t.end(); }; item.value(* t.begin().second); item.key(* t.begin().first); return t.begin(); } 00214 00215 static inline type_iterator next(Container & t, type_iterator itr, type_item & item) 00216 { itr++; if (itr == t.end()) { return t.end(); }; item.value(* itr.second); item.key(* itr.first); return itr; } 00217 00218 }; 00219 00220 template <typename Container, typename Key, typename Value> 00221 struct generic_container_base_key_value_qt_style 00222 { 00223 00224 QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(Container, Key, Value) 00225 00226 static inline long size(const Container & t) { return static_cast<long>(t.size()); } 00227 static inline void clear(Container & t) { t.clear(); } 00228 static inline void reserve(Container & t, long l) { t.reserve(l); } 00229 static inline type_item createItem() { return type_item(type_item::newKey(), type_item::newValue()); } 00230 static inline void insertItem(Container & t, type_item & item) { t.insert(item.key(), item.value()); } 00231 static inline type_iterator end(Container & t) { return t.end(); } 00232 00233 static inline type_iterator begin(Container & t, type_item & item) 00234 { if (t.size() <= 0) { return t.end(); }; item.value(* t.begin().value()); item.key(* t.begin().key()); return t.begin(); } 00235 00236 static inline type_iterator next(Container & t, type_iterator itr, type_item & item) 00237 { itr++; if (itr == t.end()) { return t.end(); }; item.value(* itr.value()); item.key(* itr.key()); return itr; } 00238 00239 }; 00240 00241 } // namespace detail 00242 00243 template <typename T> 00244 struct generic_container< std::vector<T> > : public qx::trait::detail::generic_container_base< std::vector<T>, T > 00245 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1(std::vector, T), qx::trait::no_type, T) }; 00246 00247 template <typename T> 00248 struct generic_container< std::list<T> > : public qx::trait::detail::generic_container_base_without_reserve< std::list<T>, T > 00249 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1(std::list, T), qx::trait::no_type, T) }; 00250 00251 template <typename T> 00252 struct generic_container< std::set<T> > : public qx::trait::detail::generic_container_base_set< std::set<T>, T > 00253 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1(std::set, T), qx::trait::no_type, T) }; 00254 00255 template <typename Key, typename Value> 00256 struct generic_container< std::map<Key, Value> > : public qx::trait::detail::generic_container_base_key_value_std_style< std::map<Key, Value>, Key, Value > 00257 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1_P2(std::map, Key, Value), Key, Value) }; 00258 00259 template <typename T> 00260 struct generic_container< boost::unordered_set<T> > : public qx::trait::detail::generic_container_base_set< boost::unordered_set<T>, T > 00261 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1(boost::unordered_set, T), qx::trait::no_type, T) }; 00262 00263 template <typename T> 00264 struct generic_container< boost::unordered_multiset<T> > : public qx::trait::detail::generic_container_base_set< boost::unordered_multiset<T>, T > 00265 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1(boost::unordered_multiset, T), qx::trait::no_type, T) }; 00266 00267 template <typename Key, typename Value> 00268 struct generic_container< boost::unordered_map<Key, Value> > : public qx::trait::detail::generic_container_base_key_value_std_style< boost::unordered_map<Key, Value>, Key, Value > 00269 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1_P2(boost::unordered_map, Key, Value), Key, Value) }; 00270 00271 template <typename Key, typename Value> 00272 struct generic_container< boost::unordered_multimap<Key, Value> > : public qx::trait::detail::generic_container_base_key_value_std_style< boost::unordered_multimap<Key, Value>, Key, Value > 00273 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1_P2(boost::unordered_multimap, Key, Value), Key, Value) }; 00274 00275 template <typename T> 00276 struct generic_container< QVector<T> > : public qx::trait::detail::generic_container_base< QVector<T>, T > 00277 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1(QVector, T), qx::trait::no_type, T) }; 00278 00279 template <typename T> 00280 struct generic_container< QList<T> > : public qx::trait::detail::generic_container_base_without_reserve< QList<T>, T > 00281 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1(QList, T), qx::trait::no_type, T) }; 00282 00283 template <typename T> 00284 struct generic_container< QLinkedList<T> > : public qx::trait::detail::generic_container_base_without_reserve< QLinkedList<T>, T > 00285 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1(QLinkedList, T), qx::trait::no_type, T) }; 00286 00287 template <typename T> 00288 struct generic_container< QSet<T> > : public qx::trait::detail::generic_container_base_set< QSet<T>, T > 00289 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1(QSet, T), qx::trait::no_type, T) }; 00290 00291 template <typename Key, typename Value> 00292 struct generic_container< QMap<Key, Value> > : public qx::trait::detail::generic_container_base_key_value_qt_style< QMap<Key, Value>, Key, Value > 00293 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1_P2(QMap, Key, Value), Key, Value) }; 00294 00295 template <typename Key, typename Value> 00296 struct generic_container< QMultiMap<Key, Value> > : public qx::trait::detail::generic_container_base_key_value_qt_style< QMultiMap<Key, Value>, Key, Value > 00297 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1_P2(QMultiMap, Key, Value), Key, Value) }; 00298 00299 template <typename Key, typename Value> 00300 struct generic_container< QHash<Key, Value> > : public qx::trait::detail::generic_container_base_key_value_qt_style< QHash<Key, Value>, Key, Value > 00301 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1_P2(QHash, Key, Value), Key, Value) }; 00302 00303 template <typename Key, typename Value> 00304 struct generic_container< QMultiHash<Key, Value> > : public qx::trait::detail::generic_container_base_key_value_qt_style< QMultiHash<Key, Value>, Key, Value > 00305 { QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1_P2(QMultiHash, Key, Value), Key, Value) }; 00306 00307 template <typename Key, typename Value> 00308 struct generic_container< qx::QxCollection<Key, Value> > 00309 { 00310 00311 QX_TRAIT_GENERIC_CONTAINER_TYPEDEF(QX_TEMPLATE_T_P1_P2(qx::QxCollection, Key, Value), Key, Value) 00312 00313 static inline long size(const qx::QxCollection<Key, Value> & t) { return static_cast<long>(t.size()); } 00314 static inline void clear(qx::QxCollection<Key, Value> & t) { t.clear(); } 00315 static inline void reserve(qx::QxCollection<Key, Value> & t, long l) { t.reserve(l); } 00316 static inline type_item createItem() { return type_item(type_item::newKey(), type_item::newValue()); } 00317 static inline void insertItem(qx::QxCollection<Key, Value> & t, type_item & item) { t.insert(item.key(), item.value()); } 00318 static inline type_iterator end(qx::QxCollection<Key, Value> & t) { return t.end(); } 00319 00320 static inline type_iterator begin(qx::QxCollection<Key, Value> & t, type_item & item) 00321 { if (t.size() <= 0) { return t.end(); }; item.value(t.getByIndex(0)); item.key(t.getKeyByIndex(0)); return t.begin(); } 00322 00323 static inline type_iterator next(qx::QxCollection<Key, Value> & t, type_iterator itr, type_item & item) 00324 { itr++; if (itr == t.end()) { return t.end(); }; long l = (itr - t.begin()); item.value(t.getByIndex(l)); item.key(t.getKeyByIndex(l)); return itr; } 00325 00326 }; 00327 00328 } // namespace trait 00329 } // namespace qx 00330 00331 #endif // _QX_GENERIC_CONTAINER_H_